EP 1653526 B1 20081224 - Driving system for piezoelectric actuator
Title (en)
Driving system for piezoelectric actuator
Title (de)
Ansteuerschaltung für piezoelektrischen Aktor
Title (fr)
Système de commande pour actionneur piezo-électrique
Publication
Application
Priority
JP 2004312931 A 20041027
Abstract (en)
[origin: EP1653526A2] A boosted voltage of a booster circuit (101) is applied to both a piezoelectric actuator (PA) through a diode (102) and to a parallel connection circuit of a capacitor (135) and a resistor (136) through a diode (133). When an operation of a controller (150) halts, as the potential of node k drops below the potential of node m, an automatic discharge switch (130) becomes operative. By this transition, electric charge of the piezoelectric actuator (PA) is discharged.
IPC 8 full level
H10N 30/80 (2023.01); F02D 41/20 (2006.01)
CPC (source: EP)
F02D 41/2096 (2013.01); H02N 2/067 (2013.01); F02D 2041/2003 (2013.01); F02D 2041/201 (2013.01); F02D 2041/2031 (2013.01); F02D 2041/2075 (2013.01); F02D 2041/2082 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1653526 A2 20060503; EP 1653526 A3 20070307; EP 1653526 B1 20081224; DE 602005011916 D1 20090205; JP 2006129586 A 20060518; JP 4407468 B2 20100203
DOCDB simple family (application)
EP 05023308 A 20051025; DE 602005011916 T 20051025; JP 2004312931 A 20041027